Effects of hydrogenation temperature on room-temperature compressive properties of CMHT-treated Ti6Al4V alloy
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2021年第13期
论文作者：Baoguo Yuan Jiangfei Du Qiang Chen Yuanyuan Wan Yunliang Xiang Yan Tang Xiaoxue Zhang Zhongyue Huang
摘 要：Compression tests were performed at room temperature to investigate the effects of hydrogenation temperature on compressive properties of Ti6 Al4 V alloy treated by continuous multistep hydrogenation treatment（CMHT）.Pressure-composition isotherms and micro structures were also studied.Results showed that the equilibrium hydrogen pressure increased,and the hydrogen absorption rate decreased with the increase of hydrogenation temperature.The amounts of β phase and α" martensite increased first and then decreased when Ti6 Al4 V alloy was treated by four times CMHT with the increase of hydrogenation temperature.Hydrogenation temperature played a different role on the compressive properties of CMHT-treated Ti6 Al4 V alloy.The ultimate compression of Ti6 Al4 V alloy treated by 11 times CMHT at850℃ increased by 83.3 % as compared to the as-received Ti6 Al4 V alloy.The compressive properties of Ti6 Al4 V alloy were dependent on the amounts of different phases and microstructures when Ti6 Al4 V alloy was treated by CMHT at different temperatures.
Baoguo Yuan1，Jiangfei Du1，Qiang Chen1,3，Yuanyuan Wan3，Yunliang Xiang3，Yan Tang3，Xiaoxue Zhang4，Zhongyue Huang1
1. School of Materials Science and Engineering, Hefei University of Technology3. Southwest Technology and Engineering Research Institute4. School of Mechanical Engineering, Anhui Sanlian University
摘 要：Compression tests were performed at room temperature to investigate the effects of hydrogenation temperature on compressive properties of Ti6 Al4 V alloy treated by continuous multistep hydrogenation treatment（CMHT）.Pressure-composition isotherms and micro structures were also studied.Results showed that the equilibrium hydrogen pressure increased,and the hydrogen absorption rate decreased with the increase of hydrogenation temperature.The amounts of β phase and α" martensite increased first and then decreased when Ti6 Al4 V alloy was treated by four times CMHT with the increase of hydrogenation temperature.Hydrogenation temperature played a different role on the compressive properties of CMHT-treated Ti6 Al4 V alloy.The ultimate compression of Ti6 Al4 V alloy treated by 11 times CMHT at850℃ increased by 83.3 % as compared to the as-received Ti6 Al4 V alloy.The compressive properties of Ti6 Al4 V alloy were dependent on the amounts of different phases and microstructures when Ti6 Al4 V alloy was treated by CMHT at different temperatures.
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